Martin Bros. Flashboard Dam

Martin Bros. Flashboard Dam is an other dam located in Polk County, Oregon, built in 1973. It carries a Low hazard potential classification.

About Martin Bros. Flashboard Dam

The primary purpose of Martin Bros. Flashboard Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Richard Martin (private). It impounds the Ash Swale, Trib To near Amity.

The dam stands 11 feet tall and stretches 305 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 71 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1973, the structure is well into its service life at over 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 12/15/2010. That was over 15 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOregon
CountyPolk
Nearest CityAmity
River/StreamAsh Swale, Trib To
Coordinates45.02349, -123.21595

Physical Characteristics

Dam TypeOther
NID Height11 ft
Dam Height10 ft
Dam Length305 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage71 acre-ft
Max Storage71 acre-ft
Normal Storage71 acre-ft
Surface Area7 acres
Drainage Area3 sq mi
Max Discharge97 cfs

Ownership & Safety

PurposeIrrigation
OwnerRICHARD MARTIN
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection12/15/2010
Emergency Action PlanNot Required

Identifiers

NID IDOR00486
Federal IDOR00486
More InfoState Dam Safety Program

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